Lasting-machine



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LASTING MACHINE.

No. 361,363. Patented Apr. 19, 1887.

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G.H.KELLBY.

LASTING MACHINE.

' No. 361,363. PatentedApr. 19, 1887.

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LASTING MACHINE.

No. 361,363. Patented Apr. 19, 1887.

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C. H; KELLBY.

LASTING MACHINE.

` No. 361,363. Patented Apr. 19, 1887.

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C'.H.KELLE.Y.

.LAST'ING MACHINE.

No'. 361,363. Patented Apr. 19, 1887.

UNITED STATES PATENT OFFICE.

CHARLES H. KELLEY, OF BOSTON, ASSIGNOR TO CHARLES B. LANCASTER, OF NEWTON, MASSACHUSETTS.

SPECIFICATION forming 'part of Letters Patent No. 361.363. dated April 19, 1887.

` Application filed November 11, 1886. Sci-inl No. 218,550. (No model.)

To all 1077.071?, it may concern.'

Be it known that I, CHARLES H. KELLEY, of Boston, in the county of VSuffolk and State of Massachusetts, a citizen of the United States, have invented certain new and useful Improvements in Lasting-Machines, ofwhich the following is a specification.

My invention relates to improvements inthe construction and mode of` operation of machines for lasting boots and shoes', particularly to those machines of the character shown in Letters Patent No. 307,763, granted November 11, 1884; and it has for its object to simplify and improve the construction of such machines.

In the accompanying drawings, Figure 1 is a longitudinal and vertical section of a machine in which my present improvements are embodied. Fig. 2 is a top plan View of the same, omitting the gripping device and the apparatus by which the securing-strip is applied. Fig. 8 is a view of the machine in horizontal section on the line xx of Fig. 1, and Fig. 4 a view in vertical section on the line y y of Fig. 1. Fig. 5 is the same view, with the addition of a device for applying the securingstrip. Figs. 6 to 9 are detail views, upon an enlarged scale, of specific portions of the machine, as will be hereinafter more fully described.

The frame A of the machine isl troughshaped, and within it is supported a system of four square shafts and beveled gears, B, operated by a driving-gear, C, (best shown in Fig. 4,) which is adapted,by means of a pinion and an ordinary clutch, to be driven, when desired, by any suitable source of power. Each of these shafts carries a cam, D, operating within a sliding box, E, to move the same toward and away from the center of the trough,

where the work to be lasted is placed. One

of these boxes E is provided for each of the side-lasting devices, and one for the toe and heel lasting devices, respectively. The bearing of each box against its operating-cam is made adjustable (to regulate the time and' extent oi' throw of the cam) by means of adjusting-screws e c, asshown.

The side-lasting plates or slides F are preferably formed cach in two sections, and are re- 5c The heel and toe lasting quadrants G G (best shown on an enlarged scale at Figs. 7 and 9) are mounted upon and carried by sliding boxes in the same manner, a plate, H, being interposed between the. quadrants and the 6o boxes, upon which plate the quadrants are pivoted, as shown at h, Figs. 1, 7, and 9. The rear portions, g, of the quadrants, extended beyond this pivot, form one portion of alazytongs device, to the other portion of which, g, 55

is attached an operating-rod, I, which passes through a slot in an extension of the frame of the machine. Stop-nuts z' t" limit the motion of the rod I, which thus is made to operate the lazy-tongs to open and close the quadrants. 7o

.The last and upper are supported in the usual manner at the heel and toe, and suitable devices are provided for carrying the last and lasted shoe upward at the proper time in the operation of the machine, as will be hereinaf- 7 r,

ter explained.

The gripping device for seizing and drawing up the edges of the upper is supportedin any convenient manner-as, for example, by a swinging arm, J-so that it may be brought to so or away from its place of working. The device consists oi' a pair of plates, K L, in the lower of which, L, are mounted hollow depending shells, Z, onefor each gripper. The grippers themselves consist of a pair of jaws, M

M, pivoted upon a common pivot at thelower extremity of the shell L. To each of these jaws back of theopivot is pivoted a short link, m, which in turn is pivoted to the extremity of the rod N, by which the grippers are opened 9o and closed. This construction, which is again of the lazy-tongs order, is shown in detail at Fig. 8. The upper end of the rod N bears against the other of the two plates K, which can be moved toward or away from the plate L by turning the screw-rod O, havinga shoulder bearing against the plate K,through which it passes, and threaded at its lower extremity in the plate L. A. coiled spring, a, surrounding the upper part of each rod N, bears at one end against the enlarged end of the rod,(which for purposes of adjustment may be in the forni of a nut threaded upon the rod,) and the lower end of the spring rests upon a suitable bearing, a', surrounding the rod N where it passes through the plate K. From this construction it is obvious that raising the plate K away from the plate L will cause the pinohers to open by the action of the springs, lifting the heads of the rods, while lowering the plate K toward the plate L by means of the screw will force the rods down, compressing their surrounding springs aiid closing the pincliers.

The entire gripping device is raised and lowered relatively to the last by means of the screw-rods P P, socketed at their lower ends in a downhold and threaded in the plate L. These rods P P are connected by suitable gearing with a common opeiating-wheel, substantially' as shown in the former patent.

rIhe last is supported, as in the former patent, at the heel and toe by vertical posts Q Q, and in order to obtain the upward motion of the last and the upper, after it has been lasted over the inner sole to hold it in place for the application of the securing-strip, these posts are made vertically movable, and are supported at their lower ends by means of adjustable stop-nuts q upon a transverse bar, It. This bar in turn passes through and is held up by a stirrup-piece, S, which in turn is vcarried upon the short arm of a lever, "Il, fnlcrumed upon a suitable projection from the bed of the machine. The long arm of this lever bears against a cani, U, operated by the inain shaft of the machine, and so timed that after the lasting-plates have closed over the work the cani U depresses the long arm of the lever T, thus raising the Ashort arm, the stirrnp S, the transverse bar R, and the posts Q, Q, thereby carrying the lasted upper upon the last rnily against the under side of the lasting-plates.

The machine also contains a device for adj usting the position of the upper at the toe, so as to be engaged by the grippers, which is constructed substantially as described in the prior patent. This device (shown at V, Figs. l and 2) is supported upon wings o, extending horizont-ally from the posts p' on either side of the moving carriage which carries the toe-quadrants. It bears at the rear against springs which permit it to yield when the last and upper are introduced into the machine, as in the former patent, and is provided with a retraeting-lever operated by the advancing toe-carriage to move the device away before the toe-quadrants move over the upper at the toe to last it.

To attach the retaining or securing strip by which the lasted upper is held in place over the inner sole, I employ a presser-block, XV, whose acting face w (best seen in section in Fig. 5) corresponds in general contour with the shape of the sole of the shoe to be lasted. This face fir, I make of a strip of cork, as I thereby obtain a more even and accu rate pressure than has been given by rubber or any of the other substances heretofore employed. The upper part of the presser-block W, I inount adjustably upon a swinging arm, X57', pivoted at one end upon a suitable post, K, so that it may be raised and lowered radially, as shown in Fig. 5, and adapted at its other end to engage with a rod, W2, operated by a treadle, W", by means of which the piesser-block can be forced down upon the adhesive strip after it has been laid over the inner sole. and the edges of the lasted upper, thus uniting the two together. I further provide a slotted post or guide, X', into the slot of which the arm W" enters when brought down, as previously described, thereby centering the presser-block W over its work.

The series of operations performed by the machine is the same as was set forth in the prior patent, and a description of them therefore need not be repeated here.

I elaiinl. In a lasting-machine, the combination of the four-square system of shafts and beveled gearing B B B B herein described, the four cams D D D D, one mounted upon each of said shafts, and the four sliding boxes E E E E, for carrying and operating the heel, toe, and side lasting plates, respectively, all substantially as herein set forth.

2. In a lastiiig-machiiie, the combination of the four-square system of shafts and beveled gearing B B B B herein described, the ioni' cams D D D D, one mounted upon each of said shafts, and the four sliding boxes E E E E, for carrying and operating the heel, toe, and side lasting plates, respectively, each of said boxes being provided with adjustable bearings c c, for the purpose herein set forth. I

3. In a lasting-machine, the combination, with the pivoted heel and toe lasting quadrants G G, of the lazy-tongs device f/ gf/,l/ and its operating-rod I, irovided with stopnuts fifi', i'or opening and closing said quadrants, all substantially as hereinbefore set forth.

.t. In a lasting-machine, tlieimproved gripping and releasing device herein described, consisting of the pivoted jaws M M, the links m m, andthe operating-rod N, all substantially as set forth.

5. Inagrippingdeviceforlasting-n'iachines, the combination, with the plate L, ofthe hollow shell Z, the pivoted jaws M M, links m in, and operating-rod N, all substantially as set forth.

6. In the gripping device ol' a lasting-niachine, the combination of the plates K and L, the screw-rod O, passing through and bearing against the said plate K and threaded in the plate L, the hollow shell l, pivoted jaws M, links m m, operating-rod N, and springs a, surrounding the upper part of said rod.

7. In a lasting-machine, the combination, with the vertical rods which support and raise the heel and toe of the last, of the transverse IOO - barR, stirrup-piece S, lever T, and a cam,

In ltestimony whereof Irhave hereunto sub- 1o U,operatedfromthe principal source of power scribed my name this 4th day of November, in the machine, to raise and lower the said A. D. 1886. posts, all substantially as set forth.

8. In a lasting-machine, the combination, with the presser-block W, of the supportingpost X, the slotted guiding-post X', rod W2, and treadle W3, all substantially as herein set forth, and for the purposes herein specified. l

CHARLES H. KELLEY.

Witnesses:

E. B. ToMLINsoN, J. HENRY TAYLOR. 

